@khanacademy Alex needs to get his act together, y'all don't go making mistakes in the first step
Is there a mistake in simplifying this expression? Practice this skill: http://khan.co/1HiIrQN pic.twitter.com/gFNwr1o2cJ
-
-
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
@khanacademy step 1, the exponents are to be addedThanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
@khanacademy 3^(-3)?Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
@khanacademy Why would you simplify an expression with no variables? Wouldn't you just solve it?Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
@khanacademy fell at the first hurdleThanks. Twitter will use this to make your timeline better. UndoUndo
-
-
This Tweet is unavailable.
-
-
@khanacademy Alex made a mistake from the very first stepThanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
@khanacademy In one sense he did make a mistake in Step 1. The rule when multiplying exponents with the same base is to add the exponents...Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
@khanacademy The bigger mistake is in making math an enterprise about rules and following them.Rules are ok when there is understanding...Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
@khanacademy Does he check and correct his answer by going to first principles, by calculating values of the factors and multiplying them?Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.